Detachable heel



DETACHABLE HEEL Filed May 25, 1938 may /wgw l/Z zZZzr in such "a mannerthat it may be loosenedor dis-- torted to permit the detachment and replacement base at opposite sides of 'the notch. The lower corners of this plate are shown as rounded off and the plate is shown of a'width greater than that of the heel base soas to extend down over the back of theheel and tend to close the juncture between the heel and the heel base.

In order that the plate may be more readily detachable when this is desired, such a plate 25a,

as shown in Figurellfl, may be provided at. one

end with a fastenerer'eceiving perforation 26 and at the other with a latching notch 21, which may be swung up into contact with a 'latching pin or nail. Due to the fact that the base and heel are preferably formed of rubber or similar somewhat yielding material, the notched end of the plate- 250. may be readily snapped into latching-contact with its mating pin projecting. from the heel base. i j

Figure 12 shows a further modification in which the-spreading of the rear end of the notch 1 and sealing protection, betweentheheel baseand the heelis accomplished by' the provision of an endless band or'loop' 30, preferably stretchable, such as a rubber'band, which surrounds the heel and base and bridgestheirYouter edge faces. This band or lqo pmayfif desired, be cemented or:

otherwise s'ecuredito one of the parts bridged. For example,'i t maybe secured to the "base on opposite sides jojfth'e notch, l similarly to the rubber stripZU of Figure 7. Particularly where the heel breast face is concavedilaterallygit may be securedjto this face also, either temporarily or or thehee.

From the foregoing'description of certain embodiments of this invention, it shouldbe evident to those skilled in the art that various changes and modifications might be made without departing from the spirit .orfscope of 'this'inventi'on'as" defined by the appendedcla'ims.

Iclaim;"" ,7

, 1. In combination, aheelb'asehav'inga dovetail opening 'extendingback'from its breast face and a heightwise notch extending inwardly from its rearfaceyand a heel havinga dovetailprojection on itstop-face'formed to enter said opening at its forward end and to be moved rearwardly into full engagementwith thewallsthereof and a projection at its rear endforrned to engagejin' said notchwhen said heel hasbeen movedrearwardly to its limit of motion;

2. In combination,- a heel'base'having'a dovetail opening extending back from its" breast face and a heightwise notch extending inwardly from its rear face, an'da heel having a dovetail projection on its top face formed to enter said opening at itsRforward 'end and to be moved rearwardly into fullen'g'agement with the walls thereof and a projection at its rear end formed to engage in said notch when saidheel has been moved rear wardly to itslimit of motion, said projection having' an undercut beveled forward edge, the for:

ward edge of saidnotch being complementally beveled.

I 3-. Incombination, a heel base having a dovetail opening'extending back-from its breast face and anotch extending inwardly from'its rear facega heel having a dovetail projectionon its top face formed to enter said opening at its forward end and to be moved'rearwardly into full engagement with the wallsthereof and a projection at its rear end formed to'engagein said notch when said heel has been 'moved rearwardly to its limit of motion," and tie means engaging said 'he'el' base on opposite sides of said notch for preventing the spreading of the sides of said notch which would permit the entry of water during service.

4. In combination, a heel base having a dovetail opening extending back from its breast face and a notch extending inwardly fromits rear face,a heel having a dovetail projection on its top face formed to enter said opening at its forward end andito be moved rearwardly into full engagement with the walls thereof and a'projection at its rear end formed to engage in said notch when said heel has been moved rearwardly to its limit of motion, and tie means engaging said heel base onopposite sides of said notch and overlapping said heel for preventingthe spreading of the sides'of said notch. I v

5. In combination, a heel .base having a dovetail opening extending back from its breast face and a notch extending inwardly from its rear face, a heel having a dovetail projection on its top face formed to-enter said opening at its forward end and to' be moved. rearwardly into full engagement with the walls thereof and a'projectionat its rear end formed toengage in said notch when said heel has been moved rearwardly to its limit of motion, and an elastic strip secured to said heel base on opposite sides of said notch for at least-the full width thereof.

to said heel base at opposite sides ,of said notch and overlapping said heel beneath said notch. "7.In combination, a heel base having a dovetail opening extending back from'its breast face anda notch extending inwardly from its rear face, a heel having a dovetail'projection on-its top face formed toenter-said opening at its forward end and to be moved rearwardly into full engagement with the walls thereof and a 'projection at its rear end formed to engagein said notch when said heel has been moved rearwardly to its limit of motion, and a tie plate secured to saidheel base at both sides of said notch to pre- :vent the sides of said notch from spreading in service. a y

(8. In combination, a heel base-having a dovetail'opening extending back from its breast face and a notch extending inwardly" fromits rear face, a heel havinga dovetail projection on its top face formed to enter said-opening at its forward end and to; be moved rearwardly into'full engagement with'the-walls-thereof and a projection'atits rear end formed-to engage in said notch whensaid heel has been moved rearwardly to its limit of motion; and a tie plate pivotally 'se cured to said heel'base at one side of said notch and releas'ably secured :to said base at the other side-of said notch to-prevent the sides of said notch from; spreading in service. i

QQI'n combination, a heel basehaving a dovetail opening extending back from its breast face and a notch extending inwardly from its rear face, a heel having aidovetail projection on its topjface formed toenter'said opening atits'forward end and to be moved rearwardly into full engagement with thewalls thereof and a projection? at its rear end formed to engage in said notch 75 "when said heel has been moved rearwardly to" its limit of motion, and a tie plate pivotaliy secured to said heel baseat one side of said notch and releasably secured to said 'b ase at the other side of said notch to prevent the ,sides of said I notch fromspreading in service, said plate overlapping the'rear end of said heel when in opera-' tive position.

10. In combination, a heel base having a dovetail opening extending inwardly from. its breast face and a heightwise notch extending inwardly from its rear face, a heel havinga dovetail projection on its top face formed to enter s aid opening at its forward end and to be moved rearwardly into full engagement with the walls thereof and a projection atits rear end formed to'e'ngage in said notch when said heel has beenmovedrear wardly to its limit of motion, and ane lastic :band" surrounding said heel and base and bridging from one to the other and. retaining the portions on opposite sides of said notchagainst spreading.

GEORGE' H. GILLIS. 

